A flight investigation of the reduction of aileron operating force by means of fixed tabs and differential linkage, with notes on linkage design (1938)
NASA Technical Reports Server (NTRS) · leaf 24
Figure 15.- The variation of stick force with, the sum of the upward and downward deflections of the two ailerons.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
